cli
---

+ ip tcp_metrics show
10.9.9.2 age 11.958sec ssthresh 32 cwnd 49 rtt 36409us rttvar 20245us source 10.9.9.1


srv
---

+ ip tcp_metrics show
10.9.9.1 age 11.959sec cwnd 10 rtt 36744us rttvar 18430us source 10.9.9.2


mid
---

+ tc-l4s -s -d qdisc show dev mid.l
qdisc htb 1: root refcnt 2 r2q 10 default 0x1 direct_packets_stat 0 ver 3.17 direct_qlen 1000
 Sent 5583948 bytes 84124 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
qdisc pie 8059: parent 1:1 limit 1000p target 15.0ms tupdate 15.0ms alpha 2 beta 20 
 Sent 5583948 bytes 84124 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
prob 0.000000 delay 0us avg_dq_rate 0
pkts_in 84124 overlimit 0 dropped 0 maxq 0 ecn_mark 0

qdisc ingress ffff: parent ffff:fff1 ---------------- 
 Sent 250590268 bytes 167315 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0

+ tc-l4s -s -d class show dev mid.l
class htb 1:1 root leaf 8059: prio 0 quantum 200000 rate 50Mbit ceil 50Mbit linklayer ethernet burst 1600b/1 mpu 0b cburst 1600b/1 mpu 0b level 0 
 Sent 5583948 bytes 84124 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
 lended: 84124 borrowed: 0 giants: 0
 tokens: 3755 ctokens: 3755


+ tc-l4s -s -d qdisc show dev mid.r
qdisc htb 1: root refcnt 2 r2q 10 default 0x1 direct_packets_stat 0 ver 3.17 direct_qlen 1000
 Sent 252863034 bytes 167269 pkt (dropped 46, overlimits 167070 requeues 0) 
 backlog 0b 0p requeues 0
qdisc pie 805a: parent 1:1 limit 1000p target 15.0ms tupdate 15.0ms alpha 2 beta 20 
 Sent 252863034 bytes 167269 pkt (dropped 46, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
prob 0.000000 delay 0us avg_dq_rate 0
pkts_in 167269 overlimit 0 dropped 46 maxq 268 ecn_mark 0

qdisc ingress ffff: parent ffff:fff1 ---------------- 
 Sent 4406212 bytes 84124 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0

+ tc-l4s -s -d class show dev mid.r
class htb 1:1 root leaf 805a: prio 0 quantum 200000 rate 50Mbit ceil 50Mbit linklayer ethernet burst 1600b/1 mpu 0b cburst 1600b/1 mpu 0b level 0 
 Sent 252863034 bytes 167269 pkt (dropped 46, overlimits 167070 requeues 0) 
 backlog 0b 0p requeues 0
 lended: 167269 borrowed: 0 giants: 0
 tokens: 3755 ctokens: 3755


+ tc-l4s -s -d qdisc show dev ifb4mid.l
qdisc netem 1: root refcnt 2 limit 1000000 delay 10.0ms
 Sent 252933028 bytes 167320 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0

+ tc-l4s -s -d class show dev ifb4mid.l

+ tc-l4s -s -d qdisc show dev ifb4mid.r
qdisc netem 1: root refcnt 2 limit 1000000 delay 10.0ms
 Sent 5584228 bytes 84128 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0

+ tc-l4s -s -d class show dev ifb4mid.r